👉 In cryptography, a "cryptocurrency" refers to a digital asset that is decentralized and not controlled by any central authority or government. Cryptocurrencies are designed to be secure, transparent, and untraceable, and they use cryptographic techniques to ensure their security. Cryptocurrency systems typically have several layers of security, including public key infrastructure (PKI) for authentication and encryption, private key infrastructure (PKI) for managing the funds, and a decentralized ledger called blockchain. Cryptocurrencies are also
